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a30078cb83
If a disk has persistent reservations enabled, qemu-pr-helper might open not only /dev/mapper/control but also individual targets of the multipath device. We are already querying for them in CGroups, but now we have to create them in the namespace too. This was brought up in [1]. 1: https://bugzilla.redhat.com/show_bug.cgi?id=1711045#c61 Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Tested-by: Lin Ma <LMa@suse.com> Reviewed-by: Jim Fehlig <jfehlig@suse.com>
109 lines
2.5 KiB
C
109 lines
2.5 KiB
C
/*
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* Copyright (C) 2019 IBM Corporation
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*/
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#include <config.h>
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#include "qemu/qemu_hotplug.h"
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#include "qemu/qemu_process.h"
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#include "conf/domain_conf.h"
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#include "virdevmapper.h"
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#include "virutil.h"
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#include "virmock.h"
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static int (*real_virGetDeviceID)(const char *path, int *maj, int *min);
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static bool (*real_virFileExists)(const char *path);
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static void
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init_syms(void)
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{
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if (real_virFileExists)
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return;
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VIR_MOCK_REAL_INIT(virGetDeviceID);
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VIR_MOCK_REAL_INIT(virFileExists);
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}
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unsigned long long
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qemuDomainGetUnplugTimeout(virDomainObjPtr vm G_GNUC_UNUSED)
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{
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/* Wait only 100ms for DEVICE_DELETED event. Give a greater
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* timeout in case of PSeries guest to be consistent with the
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* original logic. */
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if (qemuDomainIsPSeries(vm->def))
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return 200;
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return 100;
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}
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int
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virDevMapperGetTargets(const char *path,
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char ***devPaths)
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{
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*devPaths = NULL;
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if (STREQ(path, "/dev/mapper/virt")) {
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*devPaths = g_new(char *, 4);
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(*devPaths)[0] = g_strdup("/dev/block/8:0"); /* /dev/sda */
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(*devPaths)[1] = g_strdup("/dev/block/8:16"); /* /dev/sdb */
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(*devPaths)[2] = g_strdup("/dev/block/8:32"); /* /dev/sdc */
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(*devPaths)[3] = NULL;
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}
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return 0;
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}
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int
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virGetDeviceID(const char *path, int *maj, int *min)
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{
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init_syms();
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if (STREQ(path, "/dev/mapper/virt")) {
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*maj = 254;
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*min = 0;
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return 0;
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}
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return real_virGetDeviceID(path, maj, min);
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}
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bool
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virFileExists(const char *path)
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{
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init_syms();
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if (STREQ(path, "/dev/mapper/virt"))
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return true;
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return real_virFileExists(path);
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}
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int
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qemuProcessStartManagedPRDaemon(virDomainObjPtr vm G_GNUC_UNUSED)
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{
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return 0;
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}
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void
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qemuProcessKillManagedPRDaemon(virDomainObjPtr vm G_GNUC_UNUSED)
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{
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}
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